Press



June 16, 1925.

H. KAPFELE PRESS Filed Oct. 6, 1924 2 Sheets-Sheet 1 @THF v f mN i www.,GNN NUNM :NVE/Won hir/mr /f/iP/ELE A TTORNE YS June 16', 1925.

H. KAPPELE PRESS Filed Oct, 6, 1924 2 Sheets-Sheet 2 d WN ww.

l WITNESS A TTURNE YS forv instance with ``lliatented June" 16,` 1925.

ATENT oFFlcE.

HENRY KAPPELE, 0F STAiIFORD, CONNECTICITT.

PRESS.

` Application filed October 6, 1924. Serial No. 742,082.

To all whom t may concern:

Be it known that I, HENRY KAPPELE, a citizen of the United States, andresident of Stamford, county of Fairfield, and State of Connecticut,have invented certain new and useful Improvements'in Presses, of whichthe following is a specification.

My invention relates to presses and more particularly to die presses forstamping or orming articles of cially concerned with presses for makingtoys of rubber and also suitable material. The object of the inventionis to provide a press of the indicated type which is of simple and novelconstruction and eflicient in operation. Other more specific objectswill appear from the description hereinafter and the features of noveltywill be pointed out in the appended claims. l

In the accompanying drawings, which illustrate an example of theinvention without defining its limits, Fig. 1 is an elevation of thepress in its normal inoperative position; Fig. 2 is a similar viewpartly in section, showing the press in its operative position; Fig. 3is a sectional elevation on the line 3-3 of Fig. 2; Fig. 4 is ahorizontal section on the line 4 4 of Fig. 3 and Fig. 5 is a detail planview, partly in section of the upper press-member. i

As shown in the illustrated example the press comprises a base 10 of anysuitable construction and dimensions and provided an aperture 11 inregistri with a'hollow, upright standard l2 whic projects upwardly fromand is secured to the base 10 in any conventional manner as by means ofbolts 13. The upper end ofthe standard is provided with a head 14 havingan internally screw-threaded opening adapted to receive the one end ofan inlet pipe 15 which extends through the aperture l1 and beneath andbeyond the base 10, the latter being recessed at 10'l of the pipe l5 asshown in Figs. 1, 2 and 3. A suitably constructed sleeve 16 is slidablymounted upon the standard 12 so as to have a fiuid tight fit thereon andis closed at its upper end by means of a head '17 upon which asupporting plate or the hke 18 1s secured in any well known manner as`by means of screws 19. The plate 18 or the like in turn carries apress-member 20 mounted in spaced relation to said plate by means oflugs 21 and lixed` in place for instance by means of bolts merchandiseand is speample.

-as shown in Figs. 1

for the accommodation 22 or their equivalent; Yaf the, press-memberscompanion press-member 23 is carried by arms 24 pivoted at 25 upon anupright post 26 projecting upwardly from and secured to the base 10 bymeans of bolts 27 as shown in Figs.' 1 and 2. Preferably the post 26 isconstructed so as to be adjustable in the direction of its length, andaccordingly, as shown, may comprise two sections adjustable relativelyto each other; in such case one or more set screws 26a may be providedfor fixing the sections in an adjusted position, it being understoodthat this is only an ex- Each of the press-members 20 and 23 is madehollow and is provided with a nipple 28 adapted to receive the end of ahose 29 whereby a heating medium such as steam or any other temperaturechanging medium may be conducted to the interior of said press-members20. and 23; to guard against accidents each press-member may further beprovided with a safety plug 30 arranged to be blown out when apredetermined` pressure or its equivalent is reached within saidpress-members. The arms 24 extend beyond the post 26 and are pivotallyconnected at 31 with one end of a. link-connection 32, the other end ofwhich is pivoted at 33 to a bracket 34; the latter is secured to orcomprises an integral part of the sleeve 16 and projects radiallyoutward thereupon as illustrated in Figs. 1 and 2. The bracket 34 isprovided with an opening 35 through which the post 26 extends andfurther is formed with a recess 36 arranged to co-operate with andslidably fit over a rib 37 extending lengthwise ofthe post 26 and 2 forthe purpose to be more fully set forth hereinafter. In the preferredarrangement the link-connection 32 is constructed in anyconventionalmanner so as to be adjustable in the direction of itslength, and as shown comprises an intermediate member 32a screw-threadedin opposite directions and extending into pivot members 32h; tofacilitate the actuation of the member 32a, it may be constructed with acentrally located polygonal head 32 and a set screw 32d may be providedfory locking the member 32a against unintentionall adjustment relativelyto 'the pivot members 32b as shown in Fig. 2.' 4 Upon the press-members20 and 23 diecarriers 38 and 38* for instance by bolts 39 which passthrough sui-table registering lugs 40 located upon are respectivelymountedllu and die-carriersiat conv therein by means of the bolts 39;

venient points. The die-carriers 38 and 38 are provided with spacedflanges 41 which define-chambers or recesses 42 for the reception of thedies 43 and 43a respectively, the latter being of any conventional formand being constructed to perform the work for which the press isdesigned, whatever that may be; to hold the dies 43 and 43a againstdisplacement in their respective recesses end bars 44 extend across theopposite ends of the recesses 42 and are provided with flanges 45 whichoverlap the dies 43 and 43a, the latter being recessed to accommodatesaid flanges as shown in Fig. 3. The bars 44 are detachably fixed inplace by means of bolts 46 which pass through registering lugs .47provided respectively upon the ears and the press-members as shown inFig. 2. For the purpose to be more fully described hereinafter thepressmember 20 is constructed at opposite ends with ears 48 betweenwhich locking members 49 are pivoted at 50, said locking members beingprovided with screwthreaded ends 51 adapted, to pass betweencorresponding ears 48a located upon the press-member 23; washers 52 andnuts 53 arranged to be connected with said ends 51 serve to lock themembers 49 between the ears 48a and thereby rigidly fix thepress-members 2O and 23 against separation for the purpose to be morefully set forth hereinafter.

In practice the proper dies 43 and 43n are first fixed in place inthedie-carriers 38 and 38a respectively which are then mounted upon thepress-members 20 and 23 and fixed in the normal, inoperative conditionof the press the parts occupy the positions illustrated in Fig. 1 inwhich the material a such as plastic rubber or the like, to be used inthe press is easily placed into the dies 43 to the required amount.Fluid under pressure, such as air, is then caused lto flow through theinlet pipe 15 and by exerting its pressure from below upon the head 17raises the sleeve 16 upon the standard 12 from the position shown inFig. 1 to the position shown in Figs. 2 and 3. This actuation of the sleeve 15 correspondingly raises the supporting plate 18 and with it thepressmember 2O and lower die 43 with co-related elements; at the sametime the bracket 34 1s carried along in an upward direction and byexerting a pressure upon the link conf nection 32 lpivotally swings thearms 24 in a direction to cause the press-member 23 and with it theupper die 43a and co-related elements to move toward the lower die 43.That is to say, the described lifting of the sleeve `16 causes the dies43 and 43a to approach each other, the die 43 moving upwardly in alinear direction or path while the die 43a travels downwardly in acurved path. The operation set forth is continued gravity, the

until the dies 43 and 431 are in surface contact with each otherwhereupon if the nature of the material a. is such as to require aprolonged pressure, for instance to permit it to harden in the formimparted to 1t by the dies, the latter are clamped together by bringingthe ends 51 of the locking members 49 between the ears 48a of the pressmember 23 and then screwing the nuts 53 and washers 52 The fluidpressure within the sleeve 16 may now be relieved, if the dies are toremain clamped together in surface engagement for any length of time.

When the shaped articles a are ready to be removed from the dies, fluidunder pressure is again permitted to pass into the sleeve 16 after whichthe locking members 49 are disconnected from the ears 48 to release thedies 43 and 43a. Thereupon the flow of pressure fluid to the sleeve 16is discontinued so that the supporting plate 17 with the elementscarried thereby including the lower die 43 gradually' descends by fluidwithin the sleeve 16 gradually escaping, for instance, through asuitable vent 14a provided in the head 14 and retarding the descent ofthe parts to prevent shocks and injury thereto. As the sleeve 16 andwith it the lower die 43 and its co-related parts, gradually movesdownwardly, the bracket 34 is again carried along and by exerting a pullupon the linlc connection 32 pivotally swings the arms 24 in adirection' to move the press-member 23 and Awith it the upper die 43aaway from the lower die 43. It will be understood that the weight of thelower die 43 and its associated parts is greater than that of the upperdie 43a and its co-related elements so that the described operation ofrestoring the machine to its normal position illustrated in Fig. 1 isautomatically carried out by gravity. If the nature of the material a issuch as to require pressure only for an instant or so the separation ofthe dies in the manner set forth may be immediately brought about, inwhich .case the use of the locking members 49 is unnecessary.

Inany case during the time the machine is in use a heating fluid such assteam or any other medium for securing predetermined temperature orother conditions at the dies may be passed into the pressmembers 20 and23 through the hose 29.

The machine is simple in construction and eflicient in operation anddoes away entirely with the necessity for any manual effort inmanipulating the dies, which are brought together by fluid pressure andseparated by gravity; the intimate and positive connection between thedies, whereby one is controlled by the other, insures a harmony ofoperation which is very economical in operation and maintenance costs.

firmly against the same.l

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The press is particularly adapted for making toys and the like fromrubber and other plastic materials although it may be utilized withequal efficiency for other purposes.

By manipulating the head 32c and the' intermediate member 32a the linkconnection 32 may be adjusted as to length to bring the dies into propercontact with each other; this arrangement permits the use of dies ofdifferent transverse dimensions without in any way ail'ecting theefiiciency of the press..

Various changes in the specific form shown and described may be madewithin the scope of the claims without departing from the spirit of theinvention.

I claim:

1. A press of the kind described comprising cooperating which. said diesare mounted and means whereby an application of power tol one diecarrier is transmitted to the other to move said dies toward each otherand whereby one die carrier operates to automatically adjust said diesaway from each other when the application of power is discontinued.

2. A press of the kind described comprising a lower die movablevertically, a -cooperating upper die movable toward' and away from saidlower power actuated in its upward movements, and a connection betweensaid dies whereby both dies are coincidentally moved toward each otherand automatically from each other when continued. y

3'. A press of the kind described comsaid power is disprising uprightIsupporting means, 'a first carrying means vertically slidable on saidsupporting means and being power driven in its upward movements, a diemounted upon said first carrying means tomove-there-` with in a linealpath, a second carrying `means pivotally mounted upon said supportingmeans, a cooperating die carried by said second carrying means andmovable therewith in a curved path-and a connection between said twocarrying means whereby both dies are concurrently moved toward and awayfrom each other in their respective paths, said 'first carrying meansand its die being heavier than said second carrying dies, die carrierson die, the latter being .an upright post on said base,

movedaway means and its die and serving to automatically move the diesand carrying means away from each other by gravity when the power isdiscontinued.

w 4. A press of the kind described comprising a base, an uprightstandard thereon, a sleeve slidably mounted on said standard to move ina vertical, lineal path, means for introducing a fluid undel' pressureinto said sleeve to raise the same, a lower die carried by 'said sleeveand movable therewith in a lineal path, a device pivotally mounted uponsaid base, an upper die carried by said device and movable therewith ina curved path and a connection between said sleeve and device wherebyboth dies are coincidentally moved toward each other in their respectivepaths on the power stroke and automatically moved away from each otherby the gravitative action of said sleeve and its die when the power isdiscontinued.

5. A press of the kind described comprising a base, an upright standardthereon, a sleeve slidably mounted on said standard to move in avertical, lineal path, means for introducing a iuid under pressure 'intosaid sleeve to raise the same, a lower pressmember connecte-d with saidsleeve a lower die carried by said lower press-member to movetherewithin a vertical, lineal path, arms pivotally mounted on saidpost, an upper press-member on said arms, an upper die'carried by saidupper press-member to move therewith in a curved path and an adjustablelink-connec tion between said sleeve and arms whereby 'saidpress-members and dies are concurrently moved toward and away from eachother in their respective paths. i 6. A press of the kind describedcomprising cooperating dies, die carriersv on which said dies aremounted, a connection between' said die carriers whereby power appliedto one of said carriers is transn'iitted to the other to move both dies`toward cach other, one of said die carriers being heavier than the otherwhereby said dies are both automatically adjusted away from each otherby gravity when the application of power is discontinued.

In testimony whereof, I have hereunto set my hand.

' HENRY KAPPELE.

